Interface AggregationFunctionFactory
public interface AggregationFunctionFactory
Interface to implement for factories of aggregation functions.
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Field Summary
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Method Summary
Modifier and TypeMethodDescriptionMake a new initalized aggregation state.
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Field Details
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EPTYPE
Type information.
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Method Details
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newAggregator
Make a new initalized aggregation state.- Parameters:
ctx
- contextual information- Returns:
- initialized aggregator
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